"4. ConclusionWe have built and tested GPU-accelerated version of optimized C++ code. Given the complexity of the problem, we still achieved a 6?62-fold performance increase, depending on the hardwareand OS. Despite some loss of precision, features computed on the GPU still give classification results consistent with the gold-standard CPU version. The GPU version therefore runs fastenough to allow same-day analysis of crystallization-trial images, and correctly enough to run alongside the CPU version on the World Community Grid. We expect GPU-enabled HelpConquer Cancer to enter beta testing by the end of 2011."

"We are starting a new round of beta testing. This round is to accomplish three goals:

1) We have broaden the types of graphics card that will be able to download work. We are using this to confirm which cards should be allowed to receive work when we go to production.2) We are confirming that the server change we made last week works as expected.3) We are looking for other issues that we might have missed in previous rounds due to the bigger issues we were looking at."